568 Journal of Agricultural Research voi. v, no. 13 



water content balances the draft for water imposed by the diuretic, and 

 the milk secretion comes back to normal. 



(2) Sodium chlorid with its diuretic action as well as itsjlaxative effect 

 is unable to depress milk secretion under normal conditions, as it simul- 

 taneously calls forth an excessive thirst, which increases the water intake. 



(3) With the decreased flow of milk caused by a diuretic the percentage 

 of solids is increased. Fat here is the principal variable. 



(4) The mammary gland shows no tendency to absorb and subsequently 

 put out in its secretion additional urea absorbed by the circulation. 



(5) It is difficult to interpret the results sometimes obtained with 

 alfalfa hay as due to diuresis alone if urea diuresis can be taken as 

 a type. 



